Jonas and the Australian pop star, 26, were attending a songwriting camp while on the Indonesian island, a source confirms to PEOPLE.

Not that they didn't take time to enjoy their getaway. The couple relaxed on the sand and were spotted grabbing a bite at The Beach Club at Sandy Bay on Nusa Lembongan, an island just off the coast of Bali.

Jonas and Goodrem, who stepped out in May holding hands, are now back in the States. A rep for Jonas declined to comment on the singer's personal life.